While at the shopping mall one day, Yurie slipped and fell down the stairs, crashing into a girl named Mizuki. They both lost consciousness. Mizuki's friend Megu called an ambulance. At the hospital, they each awoke with a startle in the other's body. Their souls had swapped! But nobody would ever believe them. Yurie the dutiful wife, Mizuki the trashy teenage slut... Today was the beginning of a day unlike any they'd ever experienced before. Can Yurie get herself back in her own body...?